Harrow



(No Model.) I

I W. E. MGGANN.

HARROW. No. 344,665. Patented June 29, 1886.

UNITED STATES PATENT OFFICE.

WILLIAM E. MOCANN, OF MOGREGOR, TEXAS.

HARROW.

SPECIFICATION forming part. of Letters Patent No. 344,665, dated June29. 1

Application filed March 12, 1886. Serial No. 194.965. (N0 model.)

To all whom it may concern.-

Be it known that 1, WILLIAM E. MoCANN, a citizen of the United States,residing at Me- Gregor, in the county of McLennan and State of- Texas,have invented certain new and useful Improvements in Harrows; and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being bad to the annexed drawing,making a part of this specification, and to the letters and figures ofreference marked thereon.

The present invention has relation to that class of rotary harrowshaving arms provided with and extending radially from a common center, atrack-ring connected to the upper side of the harrowarms, upon whichwork friction-rollers connected to the seatsupport.

It is the object of the invention to improve the construction of thebarrow-arms which carry the teeth, and the manner of connecting them toa common center, whereby the above class of harrows are materiallyincreased in efficiency, much stronger, and more durable. These objectsI attain by the construction, substantially as shown in the drawing, andhereinafter described and claimed.

1n the accompanying drawing, which represents a perspective view of myinvention, A designates the barrow-arms provided with the usual teeth,a, and metal track-ring B, connected to the arms near theirouter ends.The arms A are cylindrical or round and formed hollow, and are of metal,each arm being curved, as shown, and connected at their inner ends byheads OD, between which the ends of the arms are clamped and held,' eachhead upon its inner side having semicircular seats I) for the ends ofthe arms, the heads being held together against them by suitable screwbolts and nuts. The arms A being curved, as

shown, instead of straight add efficiency to the barrow, as theresistance to the teeth is not in the line of draft but at an angle ortangentially, thereby insuring it more readily rotating when used onsoft and marshy soil. The round or cylindrical form of the harrowarmsrenders them less liable to clog between the teeth, and constructingthem hollow insures lightness with strength. The draft-beam E isconnected to the clamping-heads O D by a king-bolt, c, which looselypasses through the beam and heads, so as to allow the harrow to freelyturn upon its axis. vided with the usual whiffletree, and its rear endextends over the trackring B, and has journaled thereto afriction-roller, d.

F is an extension which is removably connected to the beam E by means ofthe pivotbolt 0, and extends outward at right angles thereto andoverlies the track-ring B, and is provided with a roller, e, similar tothat on the rear end of the beam E to bear on the track-ring. A suitableseat, G, is suspended over the beams by braces f, and a foot-board, g,is connected to the beams for convenience of the driver.

I wish it to be understood the pin 0 not only performs the function ofpivoting the plates 0 D to the beam E, but also performs the function ofremovably securing the extension F to said beam.

What I claim is In a rotary harrow, the combination, with the beam E andextension F, having rollers d e, the seat G, mounted on said beam andextension, of the ring or track B, secured to the curved hollow arms A,the plates 0 l), and the pivot-pin a, connecting the beam E, extensionF, and platesO D together, as shown and described.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

WILLIAM E. MoOANN.

Witnesses:

R. A. HENDERSON, J. B. RANDY.

The beam E is pro-

